Live Remote MCP Server Playground

Test XPayr's 21-Tool MCP Server over JSON-RPC 2.0 in your browser.

Execute live tools/list, resources/list, prompts/list, and tools/call requests against POST https://xpayr.com/api/mcp with zero local installation.

1. Select MCP Method & Tool

Open Full MCP Portal

2. Live Server Response (https://xpayr.com/api/mcp)

READY 

        

    


    

        

            
3. Raw JSON-RPC 2.0 Request Body & cURL

            

        

        

            
4. Zero-Install Remote & Stdio Client Config

            
{
  "mcpServers": {
    "xpayr-remote": {
      "type": "streamable-http",
      "url": "https://xpayr.com/api/mcp"
    },
    "xpayr-stdio": {
      "command": "npx",
      "args": ["-y", "@xpayr/mcp-server"],
      "env": {
        "XPAYR_API_KEY": "sk_test_your_merchant_key"
      }
    }
  }
}

        

    


    

                    

                
Does this MCP Playground execute real JSON-RPC 2.0 requests?

                
Yes. Clicking Execute dispatches a live JSON-RPC 2.0 HTTP POST request to https://xpayr.com/api/mcp and renders the real server response.

            

                    

                
Can I connect Claude Desktop, Cursor, or OpenAI Agents directly to https://xpayr.com/api/mcp?

                
Yes. You can connect via Streamable HTTP (https://xpayr.com/api/mcp) with zero local installation, or run npx -y @xpayr/mcp-server over stdio.

            

                    

                
How many tools are exposed by the XPayr MCP Server?

                
XPayr exposes 21 strongly typed tools across 6 capability modules (checkout, payment links, webhooks, agent spend policies, software licensing, and fee calculation), plus 4 resources and 3 workflow prompts.

            

            


            
            
            Partner revenue
            
Partner & Affiliate Earnings Calculator

            
Model your recurring 30% RevShare and CPA earnings across referred merchants and volume.

        
                
            
            Fee savings
            
Crypto Payment Fee Calculator

            
Compare your current processor cost with XPayr flat 0.5% gateway pricing.

        
                
            
            Network choice
            
USDT Network Cost Estimator

            
Choose the right stablecoin rail across TRON, Ethereum, Solana, Polygon, and BNB Chain.

        
                
            
            Launch readiness
            
Crypto Payment Readiness Checker

            
Score whether your business is ready for links, widgets, API checkout, and mainnet review.

        
                
            
            Settlement design
            
Stablecoin Settlement Planner

            
Model accepted assets, preferred settlement asset, routing complexity, and operational controls.

        
                
            
            Checkout preview
            
Testnet Checkout Simulator

            
Walk through session creation, wallet payment, confirmation, webhook, and reconciliation.

        
                
            
            Developer QA
            
Webhook Tester

            
Generate sample payment events, headers, HMAC signatures, and verification snippets locally.

        
                
            
            No-code embed
            
Crypto Payment Button Generator

            
Customize an embeddable multi-chain crypto checkout button with live modal preview and HTML/React snippets.

        
                
            
            XPayr · Built on Arc Network
            
USDC Gas Calculator for Arc Testnet by XPayr

            
Estimate an Arc Testnet transaction budget in USDC using the gas inputs you provide. This XPayr tool is a planner, not a Mainnet quote.

        
                
            
            XPayr · Built on Arc Network
            
USDC Bridge Planner for Arc Testnet by XPayr

            
Plan a USDC route into or out of Arc Testnet, separate the bridge amount from the XPayr operation fee and continue to wallet-signed execution.

        
                
            
            XPayr · Built on Arc Network
            
Stablecoin Swap Planner for Arc Testnet by XPayr

            
Preview a same-chain stablecoin conversion, slippage budget and XPayr operation fee before requesting an executable quote.

        
                

            

                Shareable State & AI / MCP Automation
                
Share this exact calculation or run it inside Claude, Cursor & VS Code via @xpayr/mcp-server

                
All form inputs on this tool automatically sync to the page URL query string for one-click team sharing or autonomous AI execution.

            

            

                
                🤖 21-Tool MCP Portal
                ⚡ OpenAPI Playground